There is a similar library for this called newspaper which I had used in my undergrad thesis. Not dismissing this work, but I am curious about what it is offering on top of it? It doesn't offer a comparison to the newspaper, at least not in the Github page.
Gulenist movement was certainly a cult, I live in Turkey and been to one of their school. I have the first-hand experience of their brainwashing methods and Gulenist indoctrination.